Preparation and Catalysis of Polymer-Protected Coinage Metal Nanoclusters.
نویسندگان
چکیده
منابع مشابه
Thermodynamic stability of ligand-protected metal nanoclusters
Despite the great advances in synthesis and structural determination of atomically precise, thiolate-protected metal nanoclusters, our understanding of the driving forces for their colloidal stabilization is very limited. Currently there is a lack of models able to describe the thermodynamic stability of these 'magic-number' colloidal nanoclusters as a function of their atomic-level structural ...
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The subject of catalysis by coinage metals (copper, silver, and gold) comes up increasingly day-by-day. This Special Issue aims to cover the numerous aspects of the use of these metals as catalysts for several reactions. It deals with synthesis and characterization of copper, silver and gold based catalysis, their characterization and use, both for heterogeneous and homogeneous catalysis, and s...
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A modular total synthesis of the natural product (+)-varitriol (1) and seven analogs was achieved by using combined coinage metal catalysis. Starting from enynol 13, reagent-controlled introduction of stereogenic centers and efficient center-to-axis-to-center chirality transfer viaα-hydroxyallene 5 afforded (+)-varitriol with 6.4% yield over 10 steps.
متن کاملExperimental and computational studies of alkali-metal coinage-metal clusters.
Coinage and alkali metal mixed clusters, M4Na- (M = Cu, Au) have been investigated experimentally using photoelectron spectroscopy and computationally at correlated ab initio levels. The related Cu4Li-, Ag4Li-, Ag4Na-, and Au4Li- clusters as well as the neutral Cu4Li2 and Cu4Na2 clusters have also been studied computationally. The calculations show that the two lowest isomers of the negatively ...
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Investigation of atomically precise Au nanoclusters provides a route to understand the roles of coordination, size, and ligand effects on Au catalysis. Herein, we explored the catalytic behavior of a newly synthesized Au22(L8)6 nanocluster (L = 1,8-bis(diphenylphosphino) octane) with in situ uncoordinated Au sites supported on TiO2, CeO2, and Al2O3. Stability of the supported Au22 nanoclusters ...
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ژورنال
عنوان ژورنال: KOBUNSHI RONBUNSHU
سال: 2000
ISSN: 0386-2186,1881-5685
DOI: 10.1295/koron.57.346